List of top Physics Questions asked in AP EAPCET

Two capacitors of capacitance 4 µF and 6 µF are connected in series and then connected to a 120 V battery. The energy stored in the system is:
Two point charges +3µC and -2µC are placed 5 cm apart in vacuum. Find the point on the line joining the charges where the electric field is zero.
A 100 W electric bulb is used for 5 hours daily. What is the energy consumed in 30 days?
Two tuning forks produce frequencies of 256 Hz and 260 Hz. When sounded together, how many beats are heard per second? If the intensity of both sources is equal, what type of interference occurs at the beat minima?
A resistor of 10 \(\Omega\) is connected across a 12 V battery. What is the power dissipated in the resistor?

A straight conductor carries a current of 10 A. The magnetic field at a distance of 2 cm from the wire is: (μ₀ = 4 × 10⁻⁷ T m/A)

A test tube of mass 8 g and uniform cross-sectional area 12 cm2 is floating vertically in water. It contains 12 g of lead at the bottom. When the tube is slightly depressed and released, it performs vertical oscillations.
Find the time period of oscillation.

Two particles are projected at angles \( \theta \) and \( (90^\circ - \theta) \) with the same speed of 25 m/s. If the second particle reaches 15 m higher than the first, then the angle of projection \( \theta \) is:

Two light waves of intensities \(I_1 = 4I\) and \(I_2 = I\) interfere. If the path difference between the waves is 25 % of the wavelength \(\lambda\), find the resultant intensity at that point.

An electric bulb is rated 100 W, 220 V. What is the resistance of the filament?
The frequency of a wave is 500 Hz and its wavelength is 0.66 m. What is the speed of the wave?
A wire of length 2 m and cross-sectional area \(1 \, \text{mm}^2\) is stretched by a force of 10 N. If Young's modulus of the material is \(2 \times 10^{11} \, \text{N/m}^2\), what is the extension in the wire?

In a nuclear reactor, fuel is consumed at the rate of \(2 \times 10^{-3}\) g/s. If 100 % of the mass is converted to energy, find the power output of the reactor in kilowatts (kW).

A car accelerates uniformly from 10 m/s to 30 m/s in 10 seconds. What is the distance covered?
What is the power consumed by an electrical device that uses 2 A current at 220 V?
A body of mass 5 kg is moving with a velocity of 10 m/s. What is its kinetic energy?
When two coaxial coils having the same current in the same direction are brought close to each other, then the value of current in both the coils:
A machine with efficiency \( \frac{2}{3} \) used 12 J of energy in lifting a 2 kg block through a certain height and it is allowed to fall through the same. The velocity while it reaches the ground is:
A body of mass 2 kg collides head-on with another body of mass 4 kg. If the relative velocities of the bodies before and after collision are 10 ms\(^{-1}\) and 4 ms\(^{-1}\) respectively, the loss of kinetic energy of the system due to the collision is \bigskip
A resistor of resistance \( R \), inductor of inductive reactance \( 2R \) and a capacitor of capacitive reactance \( X_C \) are connected in series to an A.C. source. If the series LCR circuit is in resonance, then the power factor of the circuit and the value \( X_C \) are respectively:
A body starting from rest with an acceleration of \( \frac{5}{4} \, \text{ms}^{-2} \). The distance travelled by the body in the third second is:
Two bodies A and B of masses \( 2m \) and \( m \) are projected vertically upwards from the ground with velocities \( u \) and \( 2u \) respectively. The ratio of the kinetic energy of body A and the potential energy of body B at a height equal to half of the maximum height reached by body A is:
Two spheres A & B of radii 4 cm & 6 cm are given charges of 80 µC & 40 µC respectively. If they are connected by a fine wire, the amount of charge flowing from one to the other is:
The capacitance of an isolated sphere of radius \( r_1 \) is increased by 5 times when enclosed by an earthed concentric sphere of radius \( r_2 \). The ratio \( \frac{r_1}{r_2} \) is:

A person climbs up a conveyor belt with a constant acceleration. The speed of the belt is \( \sqrt{\frac{g h}{6}} \) and the coefficient of friction is \( \frac{5}{3\sqrt{3}} \). The time taken by the person to reach from A to B with maximum possible acceleration is: